Math challenge without calculator: how much is 70 − 10 × 3 + 3?

Original: Desafio matemático sem calculadora: quanto é 70 − 10 × 3 + 3?

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Find out what 70 − 10 × 3 + 3 is, understand the order of operations and see why multiplication must be solved before addition and subtraction. The post Math challenge without a calculator: what is 70 − 10 × 3 + 3? appeared first on Catraca Livre.

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